| 发明名称 |
INK COMPOSITION |
| 摘要 |
An ink composition includes a dispersion of resin particles in water, a colorant and a co-solvent fraction for stabilizing the dispersion, wherein the co-solvent fraction includes at least one branched polyhydric alcohol and/or at least one (poly)ether modified branched polyhydric alcohol, and between 0.1 and 5 weight % polyvinylpyrrolidone having a weight average molecular weight of at least 5000 g/mol. Such ink compositions show improved robustness on a range of print substrates. In this way robust look and feel films can be realized also on less absorbing media, like the offset coated gloss, silk and matt ones with a better freedom towards recipe variation of e.g. latex and the concentrations of the ingredients. |
| 申请公布号 |
US2017022377(A1) |
申请公布日期 |
2017.01.26 |
| 申请号 |
US201615287997 |
申请日期 |
2016.10.07 |
| 申请人 |
OCE-TECHNOLOGIES B.V. |
发明人 |
VERHEGGEN Michael T.J.;EVERHARDUS Roelof H.;VAN ROY Antonius P.M.M. |
| 分类号 |
C09D11/033;C09D11/107;C09D11/322 |
主分类号 |
C09D11/033 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An ink composition comprising
a dispersion of resin particles in water; a colorant; a co-solvent fraction for stabilizing the dispersion, wherein the co-solvent fraction comprises at least one branched polyhydric alcohol and/or at least one (poly)ether modified branched polyhydric alcohol; and between 0.1 and 5 weight % polyvinylpyrrolidone having a weight average molecular weight of at least 5000 g/mol. |
| 地址 |
Venlo NL |
